Species Account

Devonia perrieri (Malard, 1904)

Galeommatoidea : Montacutidae

Tebble name: Devonia perrieri (Malard)
Smith & Heppell name: Devonia perrieri (Malard, 1904)

To size: To 5mm. Shell Structure: Thin. Equivalve: Equivalve. Equilateral: Inequilateral, beaks close to posterior end. Tumidity: Somewhat compressed. Outline: Subquadrate; anterior dorsal margin long, straight sloping gently to obliquely truncate posterior margin sloping backwards to slightly convex ventral margin, posterior broadly curved, slightly angular. Contour: Weakly sulcate either side of umbos.

Sculpture: Of co-marginal lines, some with radial linear inclusions within the shell. Margin: Inner margin smooth. Ligament: Internal very small on a shallow, posteriorly directed resilifer. Hinge: Without teeth but a faint tubercle present in some anterior of the resilifer. Pallial Musculature: Indistinct. Periostracum: Thin, transparent. Colour: White, some tinted brown and some with rust coloured deposit over umbos. Additional Characters: Animal frequently unable to completely withdraw into shell.

Distribution & Ecology

A commensal species using its sucker-like foot to adhere to the skin of holothurians of the genus Leptosynapta. From the low intertidal and shelf. Not commonly found but widespread.

Depth Range
Intertidal
Continental Shelf (to 200m)

Additional Information & Related Species

Key Features & Similar Species

The quadrate outline, posterior position of the beaks and small internal ligament are characteristic but its commensal association with Leptosynapta species is unique.

Related Species

References

Listed are literature citing Devonia perrieri (Malard, 1904). Reference containing the species Type Description is highlighted.

Bristow GA, Johannessen P, Berland B & Schander C 2010. Devonia perrieri (Malard, 1903) (Bivalvia) found in situ on the holothurian Leptosynapta inhaerens (Müller, 1776) in Norway. Fauna Norvegica. 30: 25-27.
Malard A E 1904. Sur un lamellibranche nouveau, parasite des synaptes. Bulletin Museum Paris. 9: 342-346.
Van Aartsen JJ 1996. Galeommatacea and Cyamiacea Part II. La Conchiglia. 281: 27-53, + 61.

Resources

  • Conchological Society of Great Britain & Ireland
    Provides resources for understanding, identifying, recording, and conserving molluscs
  • CLEMAM
    Check List of European Marine Mollusca
  • MarLIN
    The Marine Life Information Network for Britain and Ireland (MarLIN) provides information for marine environmental management, protection and education. It is a centre of excellence in spatially based and time-series marine biological information and supports good stewardship in the marine environment.
  • NBN Gateway
    National Biodiversity Network's Gateway. Use it to explore UK biodiversity data, as contributed by participating data providers.
  • BivAToL
  • MarBEF
  • Malacological Society
  • Unitas Malacologica
  • Census of Marine Life
  • MarBEF
    MarBEF, a network of excellence funded by the European Union and consisting of 94 European marine institutes, is a platform to integrate and disseminate knowledge and expertise on marine biodiversity, with links to researchers, industry, stakeholders and the general public.

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Record last modified: 15/01/2014